Finding the Fourth Proportional to 98,832.13, 136,386.68 and 53,509.75
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Solution
The fourth proportional to 98,832.13, 136,386.68 and 53,509.75 is: 73,842.55
Step by Step Solution
- Step 1: Write the proportion equation
98,832.13 : 136,386.68 = 53,509.75 : x - Step 2: Convert to fraction form
98,832.13/136,386.68 = 53,509.75/x - Step 3: Cross multiply
98,832.13x = 136,386.68 × 53,509.75 - Step 4: Simplify right side
98,832.13x = 7,298,016,742.28 - Step 5: Solve for x
x = 7,298,016,742.28/98,832.13 - Step 6: Final answer
x = 73,842.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.